0xD1CE (pronounced "Dice") is a seasoned cybersecurity professional with over 16 years of experience in IT, including roles in network administration, systems engineering, and penetration testing. Starting his career as a Data Voice Technician, 0xD1CE quickly transitioned through various technical roles, mastering networking and system administration before shifting to offensive security. With a wealth of certifications such as OSCP, OSEP, PNPT, CRTO, and more, 0xD1CE now serves as a Senior Penetration Tester for a Fortune 100 company, where he specializes in internal testing, hardware assessments, and web application security. Despite his extensive background, 0xD1CE emphasizes the importance of self-driven learning and staying ahead in the ever-evolving field of cybersecurity. 

Aaron Tran is a penetration tester and cybersecurity engineer with a dynamic path into offensive security, transitioning from active duty in the U.S. Army to consulting and red teaming. Currently at Blue Goat Cyber, Aaron specializes in penetration testing, medical device security, threat modeling, and static code analysis. He previously interned at TCM Security through the DoD SkillBridge program, where he gained hands-on experience in internal, external, web, and mobile app testing. Aaron holds multiple industry certifications, including PNPT, PJPT, OSWP, CySA+, CASP+, and PCRP. A strong advocate for self-discipline and mentorship, he is also a Synack Red Team member and an active contributor to the veteran cybersecurity community. 

Adolfo Vask is a cybersecurity leader with over 20 years of experience spanning intelligence, penetration testing, and red team operations. A former U.S. Navy intelligence analyst turned senior red team lead, Adolfo has led offensive security efforts for both government agencies and the private sector, with a track record that includes vCISO roles, purple team, and adjunct instruction at the University of Michigan. He holds a Master's in Cybersecurity and Information Assurance, a CISSP, and multiple offensive and defensive certifications including CEH, PenTest+, CySA+, and Metasploit Pro Specialist. Adolfo brings a unique intelligence-driven approach to cybersecurity, blending deep technical acumen with a strategic understanding of APTs and threat actor behaviors. As a team manager and mentor, he emphasizes continuous learning, effective report writing, and developing well-rounded penetration testers capable of contributing to real-world cyber resilience. 

With nearly 20 years of experience in the technology field, spanning from entrepreneurship to overseeing major projects across diverse companies, I'm deeply passionate about driving success through collaborative leadership and unwavering dedication. I consistently approach projects with a human-centric focus, aiming to set a high standard as a leader, motivate teams, and maintain strong relationships with stakeholders. Additionally, I possess the capacity to handle complex accounts and help companies enhance their processes, reduce costs, and increase profitability.

As a Project Management Professional (PMP)® and Certified Scrum Master, I bring a wealth of experience to the table. Thriving in challenging, multi-vendor environments, I utilize my cybersecurity expertise to comprehend varied project domains, ensuring their security while embracing innovation.

Betta Lyon Delsordo is a Lead Application Penetration Tester at OnDefend, specializing in web, cloud, and AI hacking. She taught herself to code at 13, launched a freelance web dev business, and later transitioned into cybersecurity. She holds a CS degree, a Master’s in Cybersecurity from Georgia Tech, and multiple certifications including GPEN, CEH, and AWS.

Betta is a longtime mentor in the Technovation Challenge, guiding girls in building apps and AI models. She’s an active member of WiCyS, WISP, and RTC, and has spoken at events like ESET World, the World Bank, and WiCyS. Her work has earned recognition from ISC2, FS-ISAC, NSA, and others. She's passionate about expanding access to ethical hacking for underrepresented groups.

Channa Rajaratne is a cybersecurity consultant and penetration tester based in Toronto, Canada. With a background in business management and finance, he transitioned into cybersecurity through self-study and certifications, earning credentials like the OSCP, GPEN, CPTS, PNPT, GCIH, and GSEC. Channa began his career in security operations and now focuses on offensive security, blending strong technical skills with a deep understanding of soft skills and report writing, which is often overlooked part of the job. 

I am a passionate cybersecurity professional specialising in penetration testing. With a background in Computer Science from Stellenbosch University, I have strong technical skills in programming, vulnerability assessment, and test automation. Currently, I work as a Penetration Tester at BDO UK LLP, where I identify and mitigate security risks for diverse organisations.

My experience includes roles as a teaching assistant and software engineering intern, where I developed REST APIs, automated testing processes, and mentored students in Object-Oriented Programming. These opportunities refined my problem-solving, teamwork, and technical expertise.

I am deeply interested in ethical hacking, emerging trends in cybersecurity, and continuous learning. Outside of work, I enjoy exploring programming, building tools, and studying languages, including Japanese and Mandarin.

Driven and curious, I aim to contribute to creating secure and resilient digital environments.

As an aspiring and passionate cybersecurity professional and penetration tester with over 3 years of experience, Constantinos stays committed for delivering high quality work and reporting. He has performed several security assessments, such as penetration testing and vulnerability assessments to clients in various sectors, including telecommunications and financial, across Europe and the Middle East. 

Moreover, he holds industry-leading certifications such as PNPT, OSCP, CRTO and BSCP in his arsenal and he constantly expands his knowledge and sharpening his skills to stay ahead of the curve in the field. 
 
He stays up to date with the latest security trends, technologies, and methodologies and he is always eager to learn, whether through cybersecurity events, certifications, or self-study while having the ability to understand and interact with clients in an effective and efficient manner. 

I don’t just uncover vulnerabilities—I exploit them to build stronger defenses. As a published author and experienced cyber investigator, I specialize in penetration testing, red teaming, OSINT investigations, threat intelligence, SEO strategy, and complex investigations, all driven by a relentless pursuit of precision and results.

• Cyber Investigations Expert
• Private Investigations Professional
• Threat Intelligence Specialist
• Penetration Testing and Red Team Expertise
• OSINT Mastery
• Published Author
• SEO Innovator
• Public Speaker

Evan Isaac is a Senior Offensive Security Consultant with a strong foundation in red teaming, web application testing, and adversarial emulation. He holds certifications including GRTP, OSCP, eWPTX, eCPPT, and eJPTv2, and earned his Cybersecurity and Networking degree from Roger Williams University. Evan currently works at Optiv and contributes to MRE Security’s blog, podcast, and YouTube, helping newcomers break into the field. He’s also active in the Republic of Hackers Discord, where he mentors aspiring professionals. Passionate about education and awareness, Evan regularly speaks to high school students about cybersecurity careers. 

George Raileanu is a seasoned cybersecurity professional with 12+ years of experience spanning red teaming, incident response, and cyber education. A U.S. Army veteran, he holds a B.S. in Information Science and Technology along with OSCP, GPEN, GCIH, and GCIA certifications. He currently leads offensive security engagements as a Senior Managing Security Consultant at GuidePoint Security. Previously, he developed hands-on labs and certification content at Offensive Security, supporting the growth of thousands of professionals. George also served in leadership roles at Army Cyber Command, including DFIR lead and course manager at the U.S. Army Cyber School. His expertise covers secure programming, malware analysis, digital forensics, and team development. Known for his ability to build technical teams, automate workflows, and communicate across all levels, George continues to push the boundaries of adversary emulation and threat simulation. 

Jacob Villarreal is an Offensive Security Engineer at PayPal with nearly 6 years in IT, including 3 years in cybersecurity focused on red teaming, social engineering, and adversary simulation. He previously led offensive engagements at Protiviti, executing over 20 red team operations and building custom payloads, phishing infrastructure, and evasion techniques to bypass modern defenses. Jacob holds OSCP and CRTP certifications and has a strong track record of mentoring, speaking at college cyber clubs, and bridging offensive insights with defensive improvements. He's passionate about simulating real-world threats to help organizations strengthen their security posture. 

Jake Mayhew is the Director of Offensive Security at White Knight Labs, where he leads red team operations, advanced penetration testing, and EDR evasion research. With a deep background in internal and assumed breach scenarios, Jake holds OSCP, OSEP, OSED, and OSWE certifications, earning him the OSCE3 designation. He's discovered 0-day vulnerabilities in Windows drivers, teaches at conferences like Black Hat USA, and co-developed OffSec courses including PEN-200 and EXP-301. Jake also runs VirtualProtect, his own security consultancy, and brings years of experience from UPMC, Synack Red Team, and PSC. His focus today is on helping organizations strengthen defenses by understanding how attackers think.

James is a TS-SCI cleared Penetration Tester with a strong background in offensive security, digital forensics. He holds certifications such as Offensive Security Certified Professional (OSCP), Practical Network Penetration Tester (PNPT), and Certified Red Team Professional (CRTP), and has extensive experience with ethical hacking, and identifying critical vulnerabilities. James training in offensive and defensive cyber operations combined with his proficiency in managing personnel and sensitive information, demonstrates his adaptability and reliability in high-stress environments.

John Kunelis is a Senior Product Security Engineer with a strong foundation in software engineering and application security. With over five years of experience, he specializes in web application pentesting, source code review, and secure software development practices. John holds a Bachelor's degree in Computer Science, a Master of Science in Cybersecurity, and industry-recognized certifications including the OSWE and OSCP. He is an active member of the SYNACK Red Team and has recently expanded his focus into hardware hacking. Known for his developer-first perspective on AppSec, John brings a unique and practical approach to finding and fixing real-world vulnerabilities. 

As a Senior Application Security Engineer, I lead and implement the Application Security program, ensuring that the software development life cycle (SDLC) follows security best practices and standards. I perform code reviews, static and dynamic application security testing (SAST/DAST), and run-time application security protection (RASP) for various cloud platforms and services.

I have a Bachelor of Science in Computer Science from California State University-Sacramento, where I also obtained the Information Assurance and Security certification. I am also an Offensive Security Certified Professional (OSCP) and an AWS Certified Security practitioner. I have provided guidance, communication, and technical testing methodologies for a cloud service provider security. I am passionate about network, system, and blockchain security, and I have created and published a lab on smart contract deployment and interaction on the Ethereum blockchain.

Joshua Ragland is an OSCP-certified cybersecurity analyst with a multidisciplinary background spanning programming, network engineering, and advanced threat detection. With multiple Associate degrees in programming, cybersecurity, and network administration, Joshua has developed a well-rounded technical foundation that fuels his passion for offensive security. Currently working in blue team roles, he leverages red team skills to enhance incident response and threat triage, bringing a deep understanding of attacker behavior to defense. A dedicated learner, he actively pursues certifications and participates in advanced adversary emulation training. His experience includes competing in CTFs, contributing to Synack’s Red Team, and building hands-on expertise in tools like Carbon Black, Splunk, and CrowdStrike. Joshua is committed to evolving the field through ethical hacking, continuous learning, and helping others grow in their cybersecurity careers. 

Justin Mahon is a highly Driven Offensive Security Professional with lead experience in penetration testing & consulting. He constantly strives to inspire development, growth, and improvement for himslef and others. Always moving forward to enhance his craft through hands-on certifications, labs, experiences, and documentation.

Security Engineer and Penetration Tester with extensive experience in DevSecOps, appsec, cloud security, and vulnerability management. Proven ability to conduct thorough penetration tests, create threat modeling procedures, and manage third-party security assessments. Strong knowledge in using various security tools and platforms, along with proficiency in Python, Bash, and JavaScript.

Kristofer Johnson is a Senior Offensive Security Consultant at Echelon Risk + Cyber with a strong foundation in red teaming, social engineering, and network penetration testing. Holding the CRTO, OSCP, eCPPTv2, and eWPTv1 certifications, along with a B.S. in Cybersecurity and Networking, Kristofer has delivered internal, external, wireless, and physical security assessments for clients across multiple sectors. He leads advanced red team engagements simulating real-world threat actors and contributes to internal documentation and public-facing articles on certifications and tradecraft. Kristofer’s background includes hands-on work with post-exploitation, lateral movement, and social engineering, all documented in platforms like Plextrac. As former president of the RWU Cybersecurity and Intel Club and a CTF champion at BSides Harrisburg, he’s demonstrated both technical skill and leadership.

Matthew Younker aka Zumi Yumi is a senior penetration tester with a background in vulnerability management, military service, and technical education. Before entering cybersecurity, he served nine years in the Army, including roles in CBRN operations and satellite communications. After transitioning out of the military, Matthew built his skill set through hands-on experience, earning certifications like the OSCP, OSWA, and Security+. He is passionate about offensive security, clear reporting, and helping others break into the field. Matthew also maintains an active presence in cybersecurity communities and is always willing to share what he's learned along the way.

 Michael Kim is a Senior Offensive Security Consultant at Palo Alto Networks Unit 42, where he conducts advanced red team operations, adversary simulations, and full-scope penetration testing across enterprise environments. With a track record spanning roles at Valiant, Peraton, CACI, and Booz Allen, Michael has secured critical government systems, led offensive operations, and built foundational security testing programs. He blends deep technical expertise with a global perspective, having lived in seven countries and worked across diverse environments. Known for ranking in the top 10% of CTF and OSINT competitions, Michael is a respected voice in offensive security who bridges the gap between technical precision and real-world business impact. 

Mike Finkel is an experienced offensive security professional with over 15 years in IT and the last five dedicated to penetration testing. He began his career routing tickets and quickly moved through roles in help desk, system administration, and network engineering for healthcare organizations before transitioning into ethical hacking. Despite starting with no formal security background, Mike self-taught his way through foundational concepts and passed the OSCP after six months of rigorous self-study. Since then, he’s built a diverse pentesting portfolio covering internal and external networks, web applications, container breakouts, and source code reviews. He holds a bachelor's in Information Systems and certifications including OSCP, OSCE, OSWE, CRTP, and CPTS. Mike is passionate about lifelong learning, pushing out of his comfort zone, and leveraging tools like AI to enhance testing capabilities and workflows. 

Highly skilled and experienced Network Solutions Architect and Offensive Cyber Professional. Bringing over 24 years of real-world experience, leadership, and management to a team. Expert in conducting offensive & defensive cyber operations (OCO/DCO) in a wide range of remote, austere, and hostile environments. Accustomed to working under intense pressure, and employing advanced equipment, software, and capabilities valued at millions of dollars. Proven ability to lead diverse teams, manage complex projects, and achieve mission objectives through both strategic and tactical Command, Control, Communications, Computers, Cyber, Intelligence, Surveillance, and Reconnaissance (C5ISR), and other various cyber objectives and missions.

Nathan Rice is a senior offensive security analyst with a well-rounded background in penetration testing, red teaming, and security consulting. Currently at UPMC, Nathan leads offensive security operations, leveraging skills built through prior roles at Verizon Business, Booz Allen Hamilton, and West Virginia University. He holds the OSED and Junior Penetration Tester certifications, with deep experience in exploit development, security controls, and incident response. Nathan began his journey in cybersecurity as a tutor at Pittsburgh Technical College, where he also earned his degree in Information Systems and Technology. With over 8 years in the field, he continues to push the envelope in offensive security and threat simulation. 

Proven skill in penetration testing, threat hunting, security operations, and leading security programs to victory. Noah has have worked with a wide variety of networks solving an even wider variety of cybersecurity and IT problems. He is passionate about finding new vulnerabilities, researching information security problems, and finding solutions to make the cyber-world safer.

GCPN | GWAPT | GPEN | GCIA | GPYC | GCIH | GSEC | GISF | GFACT

Pentest+ | CySA+ | Security+ | Project+ | ITF+

AWS CCP | (ISC)2 CC | PCEP

Congressional Award Gold Medal recipient | Eagle Scout

Nouha Ben Brahim is a cybersecurity specialist, entrepreneur, and public speaker who currently serves as Executive Director of No Breach, a cybersecurity training and consulting company she founded in Tunisia. With a strong foundation in cloud security, digital forensics, and blockchain, Nouha holds certifications including SC-100, CCNA Security, and Digital Forensics Essentials, along with EC-Council achievements in Android bug hunting and SQL injection. She's passionate about educating the next generation of cybersecurity professionals and regularly shares her insights through talks, writing, and hands-on mentorship. Driven by a love for offensive security, Nouha embodies the mindset that the best defense is a strong offense. 

With a wealth of knowledge and over 6 years of hands-on experience, I bring to the table exceptional expertise as a cybersecurity professional. My focus lies in the realm of penetration testing and red teaming, where I have consistently showcased my abilities to detect and mitigate vulnerabilities across intricate network infrastructures and applications. Through comprehensive security assessments, I delve deep into the intricate layers of digital defense, offering strategic insights and recommendations to fortify the overall cybersecurity landscape.

I am a dedicated sr. cybersecurity professional with a strong foundation in penetration testing and defensive security. With a proven track record of identifying vulnerabilities and implementing robust security measures. 

Over the years, I have honed my skills in various aspects of cybersecurity, from conducting thorough penetration tests to developing comprehensive security strategies. My experience spans different industries, effectively allowing me to adapt and respond to unique security challenges.

In addition to my technical expertise, I am committed to continuous learning and professional development. I actively mentor aspiring cybersecurity professionals, guiding them through their journey to achieve certifications in the IT and security field and gain practical experience.

As an experienced Senior Offensive Security Professional, I am actively pursuing a leadership role as a Red Team Manager or within the realm of Offensive Security. I bring with me a wealth of expertise in meticulously analyzing networks and web applications, pinpointing vulnerabilities, and crafting actionable recommendations to fortify infrastructure against threats.

My dedication to this field is fueled by a profound passion for exploring and researching novel vulnerabilities, pioneering concepts, cutting-edge methodologies, and emerging technologies. This fervor not only drives me to stay at the forefront of offensive security but also extends to my dedicated involvement in side projects focused on RFID and NFC hacking, where I continuously expand my understanding of these technologies and their security implications.

Pranit is an experienced Security Engineer with over 7 years of dedicated experience in various domains of Offensive Security, including Pentesting, Red Teaming, IoT Security, Application Security, Cloud Security, Vulnerability Research, Vulnerability Management and Attack Surface Management. 

Currently, he works as a full-time Security Engineer, leveraging his expertise to fortify organizations against evolving threats. In his free time, he enthusiastically contributes to Bug Bounty programs and conducts independent Security Research. With a proven track record, Pranit has collaborated with industry-leading organizations, including Fortune 500 companies, significantly enhancing the security posture of these enterprises.

Pratham Shah is a driven and technically skilled cybersecurity consultant with a strong passion for ethical hacking, penetration testing, vulnerability analysis, and network security. At just 21 years old, he’s already earned an impressive lineup of certifications including OSCE3 (OSED, OSEP, OSWE), OSCP+, OSWA, eCPPT, CCNA, and CEH Practical. Pratham began his journey through bug bounty platforms, not for money or job prospects, but purely to learn how real-world systems work beyond lab environments. With a hands-on mindset, strong communication skills, and relentless dedication, Pratham exemplifies what it means to “try harder” in offensive security. 

Richie Vinson (4NU81X7H3H4CK3r) is a Junior Offensive Security Engineer at NextGen Red Team and a Security Analyst at InfraShield, where he protects critical digital assets in the industrial control systems space. Known for earning a Black Badge at HackSpace and actively contributing to events like DEFCON 865, Richie brings a rare combination of hands-on red team experience, infrastructure security knowledge, and community leadership. He bypassed traditional cybersecurity gatekeeping by building a powerful private network through relentless volunteering and self-driven learning without a college degree or the OSCP. Richie holds certifications including PNPT, PJPT, OT Security Expert, and ISO/IEC 27001 Lead Auditor. With a passion for outmaneuvering adversaries and mentoring the next generation, he’s proof that dedication, strategy, and real-world skills can beat the checkbox hiring game.

Robert O’Connor is a penetration tester with strong expertise in Active Directory and internal network assessments. He holds OSCP, CRTO, and CASP+ certifications, along with dual bachelor’s degrees in Network Security and Network Engineering. Currently a Red Team Consultant at OnDefend, Robert previously worked as a government-facing pentester and senior security analyst. His foundation was built through SOC work, Capture the Flag competitions, and cyber challenges like WRCCDC and CPTC, where he consistently placed near the top. Robert is actively pursuing OSCE3, currently focused on completing OSEP and OSED. He sharpens his skills through Hack The Box Pro Labs, preferring realistic environments like Dante and Offshore that emphasize multi-system Active Directory compromise. He’s passionate about identifying misconfigurations, developing practical tradecraft, and continuing to grow as a red team operator. 

Ryan Daub is an offensive security analyst with a focused path into cybersecurity built on determination, hands-on learning, and strategic career moves. With a B.S. in Information Sciences and Technology from Penn State, he started in IT support and systems administration before transitioning into offensive security. At UPMC, he leads PCI, external, internal, and web app penetration tests, manages offensive tooling, and supports red team operations. He holds certifications including OSWP, Pentest+, Azure Fundamentals, and CRTO. Known for his disciplined approach, Ryan built a home lab, documented his work, and even submitted a custom pentest report with his job application, earning him his first role in the field. He's currently working through PEN-200 and plans to pursue CRTO to deepen his red team skill set. 

As a forward-thinking Cybersecurity Professional, I am currently embracing the challenges of digital security at BDO UK LLP as a Penetration Tester. In this role, I specialise in ethical hacking, deploying cutting-edge strategies to safeguard systems and data. I apply rigorous testing methodologies to identify vulnerabilities before they can be exploited, underscoring my commitment to maintaining our clients' trust by protecting their digital assets.

My journey in tech commenced in Cape Town, where I refined my software engineering skills at impact.com. My tenure as an Associate Software Engineer was marked by significant contributions to API documentation enhancement and interfacing with multiple programming languages, including PHP and HTML.

Spencer Alessi is a passionate Information Security Practitioner that enables competitive advantage through assisting organizations in building defensible, vigilant and practical security programs that align to the business.

Most of my current efforts are focused on understanding threats, techniques, and methods and then implementing them through offensive security assessments and analysis.

Spencer has hands on experience in wide range of disciplines and always strive to have a tenacious, resourceful and driven attitude. 

Spencer is passionate about both offensive and defensive security because successfully defending networks from attackers requires both. Most of time currently is spent focused on understanding threats, techniques, and methods and then implementing them through technical assessments and analysis.

Trent Darrow is a Senior Pentester at Synack and a Warrant Officer in the Army National Guard with over 14 years of experience spanning offensive security, digital forensics, and cyber warfare. He holds elite certifications including OSCP, OSEP, GXPN, GPEN, GWAPT, GCPN, and GCFA. Before joining Synack, Trent held offensive roles at MindPoint Group and Plante Moran and taught networking and cybersecurity fundamentals as a Cybrary instructor. His career blends deep technical knowledge with operational leadership, developed through both private sector consulting and hands-on military cyber defense. Trent’s mission is clear: improve security by thinking like an attacker. 

I am passionate about finding and fixing vulnerabilities in cloud and enterprise assets. I have the OSCP certification that demonstrates my growing skills in penetration testing.

I am also an active member and treasurer of DC608, a local community of cybersecurity enthusiasts, where I train and mentor others in red and blue team challenges from various platforms. I enjoy sharing my insights and learning on my website and blog, where I post notes, write-ups, and projects related to cybersecurity topics.

Results-driven Cybersecurity Certified Engineer with extensive IT experience in system administration, technical support, and web development. Proficient in troubleshooting hardware and software issues, collaborating with cross-functional teams, and ensuring compliance with security policies and standards. Background includes cybersecurity, implementing measures to protect systems, data, and networks. Managed network systems, optimizing infrastructure for seamless connectivity and efficient data transfer. Well-versed in SIEM (Security Information and Event Management) tools, enabling to monitor and respond to security incidents, analyze logs, and detect anomalies.

Tyler Ramsbey is an Offensive Security Certified Professional (OSCP) and Certified Cloud Security Professional (CCSP). He has a deep passion for offensive security and has identified & disclosed numerous CVEs/0-day vulnerabilities. He holds degrees in business, cybersecurity, and theology/leadership. 

In addition to his technical work, he is the founder of the "Hack Smarter" IT Community, a thriving global network with over 4,000 members. Within this community, he offers career guidance, resume reviews, and mock interviews. 

This work extends to YouTube (https://youtube.com/@TylerRamsbey) where I have over 25,000 subscribers and regularly release videos on new research and techniques for pentesting.

Penetration Tester, working to develop and improve upon existing standards of software and hardware development. Experienced with network and web application penetration testing, hardware development and implementation, installation, configuration, and management. Developed automation scripts for many complex and high level tasks, including verification testing, debugging, engineering, data analysis, reporting, project management, and training.